package dao;

import java.util.List;

import org.hibernate.LockMode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import pojo.Relationship;
import pojo.RelationshipId;

/**
 * A data access object (DAO) providing persistence and search support for
 * Relationship entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see dao.Relationship
 * @author MyEclipse Persistence Tools
 */
public class RelationshipDAO extends HibernateDaoSupport {
	private static final Logger log = LoggerFactory
			.getLogger(RelationshipDAO.class);
	// property constants
	public static final String DESCRIPTION = "description";
	public static final String STATE = "state";

	protected void initDao() {
		// do nothing
	}

	public void save(Relationship transientInstance) {
		log.debug("saving Relationship instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Relationship persistentInstance) {
		log.debug("deleting Relationship instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Relationship findById(RelationshipId id) {
		log.debug("getting Relationship instance with id: " + id);
		try {
			Relationship instance = (Relationship) getHibernateTemplate().get(
					"pojo.Relationship", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Relationship instance) {
		log.debug("finding Relationship instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Relationship instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from Relationship as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByDescription(Object description) {
		return findByProperty(DESCRIPTION, description);
	}

	public List findByState(Object state) {
		return findByProperty(STATE, state);
	}

	public List findAll() {
		log.debug("finding all Relationship instances");
		try {
			String queryString = "from Relationship";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Relationship merge(Relationship detachedInstance) {
		log.debug("merging Relationship instance");
		try {
			Relationship result = (Relationship) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Relationship instance) {
		log.debug("attaching dirty Relationship instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Relationship instance) {
		log.debug("attaching clean Relationship instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static RelationshipDAO getFromApplicationContext(
			ApplicationContext ctx) {
		return (RelationshipDAO) ctx.getBean("RelationshipDAO");
	}
}